Yeah I noticed that heheh. And I think our ages are from oldest to youngest, approx:

Edge
Regnum, Anemoli, Beelzebub
Lucian, Halley
Ferrum, Leonides, Noire, Sila, 
Terra, Path/Relin
Blizzard, Forte, Sanare,
Charon
-
December
-
-
Skylark, Sleipnir